jq array to object with keys

How to use xargs and sed to pipe results to an array? Cultural identity in an Multi-cultural empire, calculation of standard deviation of the mean changes from the p-value or z-value of the Wilcoxon test. What does that mean. Browse other questions tagged. Making statements based on opinion; back them up with references or personal experience. jq is a powerful tool that lets you read, filter, and write JSON in bash The most useful bash commands for front end development While being a front end developer doesn't mean you should be a command line expert, knowing a little bit of bash has gone a long way for me Site design / logo 2023 Stack Exchange Inc; user contributions licensed under CC BY-SA. operator to remove an By clicking Accept all cookies, you agree Stack Exchange can store cookies on your device and disclose information in accordance with our Cookie Policy. 587), The Overflow #185: The hardest part of software is requirements, Starting the Prompt Design Site: A New Home in our Stack Exchange Neighborhood, Testing native, sponsored banner ads on Stack Overflow (starting July 6), Temporary policy: Generative AI (e.g. Using .id rather than {id} avoids creating a dictionary for each selected value. Site design / logo 2023 Stack Exchange Inc; user contributions licensed under CC BY-SA. Would a room-sized coil used for inductive coupling and wireless energy transfer be feasible? Learn more. This is a cheatsheet of commands and function that Ive found useful for quick reference. To subscribe to this RSS feed, copy and paste this URL into your RSS reader. This feature uses the Object and Array index jq creates of a JSON document and look like this: jq programs can contain object constructors { } and array constructors [ ]. What would stop a large spaceship from looking like a flying brick? There are three immediate solutions I see to this: Explicitly extract these set of keys, e.g. To create a JSON object, wrap the output in curly brackets ({}). Do modal auxiliaries in English never change their forms? I need to use jq to extract the id values into a new array where enabled is set to true. It has also been pointed out that I could have modified my original code to provide a more elegant solution by using (.[1][]? rev2023.7.7.43526. By clicking Accept all cookies, you agree Stack Exchange can store cookies on your device and disclose information in accordance with our Cookie Policy. rev2023.7.7.43526. Like map, I find select comes up quite a bit, so while you may have to come back to this article or google it the first few times you need it, with luck, it will start to stick to your memory after that. Unfortunately, its impossible to do this with the GitHub API unless you specify all the possible labels in your query. The neuroscientist says "Baby approved!" By clicking Post Your Answer, you agree to our terms of service and acknowledge that you have read and understand our privacy policy and code of conduct. This article provides example jq expressions you can use in the expr Browse other questions tagged, Start here for a quick overview of the site, Detailed answers to any questions you might have, Discuss the workings and policies of this site. For supported regex syntax, refer to the re2 I have. filter to get the I almost never end up reverting though, and the commits all get fixuped away, so I think its more useful psychologically than anything else., A note for the pedants: automated behavior is stored in your basal ganglia. Im an experienced software developer learning Golang by building an activity tracker1. The following expression extracts the user id and shop level to output a new The following expression returns elements If you dont use a tool, you will never master it. You can then use the rev2023.7.7.43526. By clicking Accept all cookies, you agree Stack Exchange can store cookies on your device and disclose information in accordance with our Cookie Policy. array's elements from another array. A jq expression consists one or more filters. using a jq expression in the expr parameter, escape any JSON special You can use pipes inside of jq and conceptually they work just like shell pipes: This means that sorting my labels array is simple. To learn more, see our tips on writing great answers. backslash (\"). Whether its exploring a REST API or looking at docker inspect results, JSON is everywhere, so opportunities abound. To learn more, see our tips on writing great answers. What is the significance of Headband of Intellect et al setting the stat to 19? But there is an easier way, though. How can I learn wizard spells as a warlock without multiclassing? (Ep. The best answers are voted up and rise to the top, Not the answer you're looking for? [] | { title: .title, number: .number, labels: .labels | length } ]', 'map({ title: .title, number: .number, labels: .labels | length }), 'map({ title: .title, number: .number, labels: .labels | length }) |, "Debugging help through showing pipeline intermediates. Use map instead of . Browse other questions tagged, Where developers & technologists share private knowledge with coworkers, Reach developers & technologists worldwide, The future of collective knowledge sharing, Can you post some code. Avoid angular points while scaling radius, Morse theory on outer space via the lengths of finitely many conjugacy classes, Characters with only one possible next character, Cultural identity in an Multi-cultural empire. If the array contains the tag, the expression returns true. The following expression extracts a But I have not been able to combine them. Converting object into array using only jq and bash, Convert json array of objects to bash associative array, jq: output json array of objects to array of keys with objects, Making an array of objects from json using jq, Mapping over a JSON array of objects and processing values using JQ, Lie Derivative of Vector Fields, identification question. filter to encode a string as a URI. For example, "a" becomes [ [],"a"], and [ [],"a", ["b"]] becomes [ [0], []], [ [1],"a"], and [ [2,0],"b"]. Super User is a question and answer site for computer enthusiasts and power users. Can Visa, Mastercard credit/debit cards be used to receive online payments? Do I have the right to limit a background check? However, some things never stick in my head, nor my fingers, and I have to google them every time. What is the Modified Apollo option for a potential LEO transport? If you're new to jq, you can use these examples as a starting point Introducing Earthly: build automation for the container era. Not the answer you're looking for? The following expression gets the id of the second To learn more, see our tips on writing great answers. The following expression extracts the In the movie Looper, why do assassins in the future use inaccurate weapons such as blunderbuss? 1 ash211 commented on Mar 27, 2017 With newer versions of jq (1.6 and later per #963) you can use this expression to remove null-valued keys recursively: 'walk ( if type == "object" then with_entries (select (.value != null)) else . Need help converting this preferably with generic code with jq. Avoid angular points while scaling radius. To subscribe to this RSS feed, copy and paste this URL into your RSS reader. index filters to compare a flat array to an array of objects. (Ep. you pull out the parts of the top-level object that you are interested in: { "package2": { "name": "package_2", "value": "auto" } } With map_values (expression), you apply expression to each sub-part of the input object. (Ep. We define the name and then what it does (converts and object to an array of key:value pairs), , which sorts strings by alphabetical value, and then , which converts the output back to an. ChatGPT) is banned, Converting a JS object to an array using jQuery, Convert Object Array to Array Object: Javascript, Converting JavaScript array into JavaScript object, Object into array conversion using JavaScript, Convert Javascript array back into JQuery-type object, How to convert javascript array to object. Is religious confession legally privileged? Find centralized, trusted content and collaborate around the technologies you use most. If you need the keys to be all upper case you can use ascii_upcase to do this by modifying his example: Can be shortened and made more readable so: Thanks, wish I would have found this 45 min ago! Similarly, to put a generated collection of results into a JSON array, you wrap it in an array constructor [ ]. Please feel free to edit the title, I am not sure how to best express it :). grouping to find the The best answers are voted up and rise to the top, Not the answer you're looking for? Do Hard IPs in FPGA require instantiation? The following expression adds a static property to a list of ids and returns the Do modal auxiliaries in English never change their forms? This article is about JSON and using JQ but if youre interested in a different approach to building software then check us out. filter to get elements from a JSON array. How can I remove a mystery pipe in basement wall and floor? Before It only takes a minute to sign up. Site design / logo 2023 Stack Exchange Inc; user contributions licensed under CC BY-SA. jq and array of two things: key and value, Why on earth are people paying for digital real estate? (Ep. Is there a distinction between the diminutive suffixes -l and -chen? I wrote about jq in greater depth here. Browse other questions tagged, Where developers & technologists share private knowledge with coworkers, Reach developers & technologists worldwide, The future of collective knowledge sharing. I wanted to sit down and write about all the tricks we learned and that we used every day to help make builds more manageable in the absence of Earthly. Please dont do this. This feature uses the Object and Array index jq creates of a JSON document and look like this: >_jq '.key [0].subkey [2:3].subsubkey'. Not the answer you're looking for? Is speaking the country's language fluently regarded favorably when applying for a Schengen visa? To get the top-level keys as a stream, you can use the built-in function keys[]. Here is how I filter the JSON document to select the value of the name key: Similarly, for selecting the value of the owner key: You can drill in as far as you want like this: jq lets you select elements in a JSON document like its a JavaScript object. --stream: Parse the input in streaming fashion, outputting arrays of path and leaf values (scalars and empty arrays or empty objects). Would it be possible for a civilization to create machines before wheels? [].name) : "the name"}' 'myfile.json' gets me an object with [].name keys but how do I assign the object to it? Lastly, to deepen my knowledge, Im learning about recursive descent, declaring variables, and defining functions and advanced features found in the manual. By clicking Post Your Answer, you agree to our terms of service and acknowledge that you have read and understand our privacy policy and code of conduct. So when I have a task that can be solved using jq, then it is what I use. Typo in cover letter of the journal name where my manuscript is currently under review, Book set in a near-future climate dystopia in which adults have been banished to deserts. I pasted your input file in SO-70302009.json. Were Patton's and/or other generals' vehicles prominently flagged with stars (and if so, why)? In the example above, the issue titles were new line delimited: In fact, whenever you ask jq to return an unwrapped collection of elements, it prints them each on a new line. # Denoting the input by $n, which is assumed to be a positive integer. What is the reasoning behind the USA criticizing countries and then paying them diplomatic visits? Updated: April 17, 2023 Sounds too hacky, @PhiterFernandes - nothing hacky here, just a simple. Stack Exchange network consists of 182 Q&A communities including Stack Overflow, the largest, most trusted online community for developers to learn, share their knowledge, and build their careers. The first thing I can do is simplify it using map. You can see this by explicitly asking jq to ignore its input and instead return two numbers: You can resolve this the same way you would turn the text 1,2 into an array in JavaScript: By wrapping it in an array constructor [ ]. exist in the array, the filter returns a null value. Use the subtraction operator and a parenthesis To do so, I needed to know all of the possible key names to build a schema that the data would fit in to. Purpose of the b1, b2, b3. terms in Rabin-Miller Primality Test, Science fiction short story, possibly titled "Hop for Pop," about life ending at age 30. The article also covers You convert from JSON to CSV. For what it's worth the original structure comes from MongoDB, but I am unable to change it at this level. Getting the current Book set in a near-future climate dystopia in which adults have been banished to deserts, Book or a story about a group of people who had become immortal, and traced it back to a wagon train they had all been on. You can define you own functions and even find primes with jq: However, simple stuff like selecting elements, filtering by key, or value is often all you need. function to format this timestamp. The size of arrays is same and each object is just aggregate of items at position x in each array. expression in the expr parameter, escape any double quotes with a leading play site or the jq command-line Find centralized, trusted content and collaborate around the technologies you use most. jq: Turn an array of objects into individual objects and use each array index as a new key, https://stackoverflow.com/a/40766540/5221944, https://stackoverflow.com/a/42287566/5221944, Why on earth are people paying for digital real estate? Loading a json key-value map into Power Query, jq filtering - Cannot index array with string "Score", Splitting Multi-valued JSON elements into an Array with PowerShell, Change one .json key value with an already existing one using jq, jq filtering - Cannot index array with string ""value", Extract element from JSON array in file with jq. Countering the Forcecage spell with reactions? Customizing a Basic List of Figures Display, Purpose of the b1, b2, b3. terms in Rabin-Miller Primality Test. Find the maximum and minimum of a function with three variables. [1]) to contain an if/then expression that either iterates across the array elements as before, or simply provides that . Learn more. Unsubscribe at any time. expression extracts the first matching email address from a ticket description. Thanks peak, I tried this against a couple of different scenarios and it always worked well. jq has many built-in functions. I'm using jq 1.4 and I'm trying to break these arrays into individual objects, each of which will have a key such as g__0 or g__1, where the numbers correspond to the index in the original array, as returned by the keys function. Were Earthly. end)' 11 1 saizai commented on Oct 22, 2017 So Ill show that next. I have an array that contains my name (["Adam","Gordon","Bell"]), and I want to turn it into a JSON object like this: I can select the elements I need using array indexing like this: To wrap those values into the shape I need, I can replace the values with the array indexes that return them: This syntax is the same syntax for creating an object in a JSON document. Thanks for contributing an answer to Stack Overflow! If you're using jq 1.3, you'd have to write. Customizing a Basic List of Figures Display, QGIS does not load Luxembourg TIF/TFW file. To create an array, wrap the output in square brackets ([]). Youll probably want to use the -r (raw) command if youre using it in a pipeline or saving the output to a variable. 2 Answers Sorted by: 4 With jq 'map_values (select (.value == "auto"))' file . 587), The Overflow #185: The hardest part of software is requirements, Starting the Prompt Design Site: A New Home in our Stack Exchange Neighborhood, Testing native, sponsored banner ads on Stack Overflow (starting July 6), Temporary policy: Generative AI (e.g. In general and invoking a separate jq command, you have to use -s, --slurp that will make these sequential objects an array, and then you can sort it by a key. when writing your own expressions. Whenever I reach a stopping point in my work, I use a bash alias called gwip1 to create a work in progress commit. In this article, Im going to go over the basics building blocks of jq in enough depth that you will be able to understand how jq works. Browse other questions tagged, Where developers & technologists share private knowledge with coworkers, Reach developers & technologists worldwide, The future of collective knowledge sharing, Whoa, worked just fine! English equivalent for the Arabic saying: "A hungry man can't enjoy the beauty of the sunset", Typo in cover letter of the journal name where my manuscript is currently under review, Science fiction short story, possibly titled "Hop for Pop," about life ending at age 30, Remove outermost curly brackets for table of variable dimension. filter to cast the index as a boolean value. Action is needed. By clicking Post Your Answer, you agree to our terms of service and acknowledge that you have read and understand our privacy policy and code of conduct. filter to extract a pattern from a string using a regular expression (regex). Its similar to the WHERE clause in a SQL statement or array filter in JavaScript. | jq -s 'sort_by (.date)'. Ask Question Asked 6 years, 11 months ago. # Output a JSON file, in pretty-print format:jq# Output all elements from arrays# (or all key-value pairs from objects) in a JSON file:jq. If the "alias" key is missing or the "alias" value is null, the [] | .params | . How to loop through JSON objects to extract specific key values with jq. It feels like its in my fingers, but really, these actions just fired at a level below my awareness., By default, jq pretty-prints all its output. The following expression outputs the current Physical Embodiment of Cunninghams Law. Book or a story about a group of people who had become immortal, and traced it back to a wagon train they had all been on. They are in my head, not my fingers.2. The neuroscientist says "Baby approved!" parameter. I want a low-effort way to track my physical activity, and building As creators of a new approach to build automation, we have always strived to create products that we ourselves would have wished we had. [] to retain the array: Note that this produces an array of objects [{},{}], what I believe is what you asked for although in your desired output you are missing the curly object braces { }. Im going to use jq to filter the data returned by the GitHub repository API. Then to index from keys to values, take json-seq of key-tuple with (each) value tuple and transpose and zip them in pairs. Incidentally, building off of @aioobe's excellent answer. Do you need an "Any" type when implementing a statically typed programming language? Why free-market capitalism has became more associated to the right than to the left, to which it originally belonged? What is the Modified Apollo option for a potential LEO transport? single array. The syntax looks like this: { myPropertyName: .propertyFromJSON }. ), so the information that the error is on line 1 is not , '{ "first_name":. This is the same as iterating with a for.in loop, except that a for.in loop enumerates properties in the prototype chain as well. (Note that piping to jq with no jq script will just format and colorize the JSON. Another alternative, which produces keys in the original order, is: The @csv and @tsv filters might also be worth considering here, e.g. obtain value from unknown string key property, using jq. 20 I found this Q/A with the solution to print all the keys in an object: jq -r 'keys [] as $k | "\ ($k), \ (. You can use the strftime Find centralized, trusted content and collaborate around the technologies you use most. Typo in cover letter of the journal name where my manuscript is currently under review, Extract data which is inside square brackets and seperated by comma, Lie Derivative of Vector Fields, identification question. What is the reasoning behind the USA criticizing countries and then paying them diplomatic visits? Can Visa, Mastercard credit/debit cards be used to receive online payments? manual. quotes. tool. To learn more, see our tips on writing great answers. jq is one of these. jq is a lightweight, command-line JSON processor. If you wrap the query in the array constructor you get this: But this still isnt the JSON document I need. Not the answer you're looking for? Book or a story about a group of people who had become immortal, and traced it back to a wagon train they had all been on. What languages give you access to the AST to modify during compilation? For example, it would be nice to not have to reconstruct the objects at the end with explicit key names, and it would also be nice if one could generalize this to n sub-arrays, not just two. json jq Share Improve this question Follow date in a YYYY-MM-DD format. It only takes a minute to sign up. [$k] | .ip)"' keys produces the key names in sorted order; if you want them in the original order, use keys_unsorted. The now function gets How to recurse with jq on nested JSON where each object has a name property? Combine the array index and object identifier-index filters to get a property ticket id value to a string. It will transform the dict into an array of items: Once you have such entries, you can access .key and .value.value of each item to get the pairs you want: The same for transforming them into a string: Note that the select(.) Superb! Have you ever then burnt half a day pushing small changes and waiting for your build to Hello world! Id love to hear your feedback, or if you have any tips of your own. Tip: For an example action using these functions, refer to ZIS action: Making statements based on opinion; back them up with references or personal experience. By clicking Accept all cookies, you agree Stack Exchange can store cookies on your device and disclose information in accordance with our Cookie Policy. Connect and share knowledge within a single location that is structured and easy to search. To subscribe to this RSS feed, copy and paste this URL into your RSS reader. There are probably too many to remember but the built-ins tend to mirror JavaScript functions, so give those a try before heading to jq manual , and you might get lucky.5. How could I convert my array to the needed format, considering that the key will be the same as the value? Cultural identity in an Multi-cultural empire. Filter records that have null at a value $ jq '. By clicking Post Your Answer, you agree to our terms of service and acknowledge that you have read and understand our privacy policy and code of conduct. To get these values into a proper JSON object, I need an object constructor { }.

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