11/12/2023 0 Comments Httpie docs![]() The response headers are downloaded always, even if they are not part of the output Raw request body Therefore, bandwidth and time isn’t wasted downloading the body which you don’t care about. ![]() Since you are only printing the HTTP headers here, the connection to the server is closed as soon as all the response headers have been received. For example instead of using a static string as the value for some header, you can use operator Using file contents as values for specific fields is a very common use case, which can be achieved through adding the suffix to ![]() Raw request body is a mechanism for passing arbitrary request data. Note that the structured data fields aren’t the only way to specify request data: For example or With -form, the presence of a file field results in a -multipart request Useful when sending JSON and one or more fields need to be a Boolean, Number, nested Object, or an Array, e.g., meals:='' or pies:= (note the quotes)įile upload fields available with -form, -f and -multipart. Request data fields to be serialized as a JSON object (default), to be form-encoded (with -form, -f), or to be serialized as multipart/form-data (with -multipart) X-API-Token:123Īppends the given name/value pair as a querystring parameter to the URL. I would consider that to be a problem due to underspecification.Arbitrary HTTP header, e.g. In particular, integers beyond JavaScript's Number.MAX_SAFE_INTEGER (2^53 - 1) should be considered unsafe in a JSON document.Īnother result is that no real-world JSON representation can round-trip “correctly”: instead of treating numbers as “a sequence of digits” they might convert them to a float64, in which case a JSON → data model → JSON roundtrip might result in a different document. The result is that sane programs – that don't want to be at the mercy of whatever JSON implementation processes the document – might encode large integers as strings. A JSON number could validly describe a 1000-bit integer, but no reasonable implementation would be able to decode this. If an implementation decodes an integer value as a float, this might lose precision. * JSON doesn't have separate representation for ints and floats. * Float values like Infinity or NaN cannot be represented. That is enough to allow interchange.īut can you encode/decode an arbitrary integer or a float? Probably not! JSON instead offers only the representation of numbers that humans use: a sequence of digits. > JSON is agnostic about the semantics of numbers. The standard euphemistically describes this as: They can have a sign, decimal part, and an exponent. Or something could be added for convenient handling of bash arrays. For example the Python-style `%(env_var)s` sequences could be used which could expand environment variables directly. I've used a printf style format string here, which could be expanded for extra convenience. %s is invalid JSON anyway, so you can do a string substitution - all you need to keep track of are matching quotes (including escape sequences). Curl doesn't actually need to parse (nor validate) the JSON, or to create a tree representation of the data within itself. What's on the command line resembles what's actually going to be sent.Ģ. One alternative would be to provide escaping more directly like this:Īnd then curl would do the substitution with the appropriate type-specific escaping for each variable. It seems the goal is to make it easier to craft JSON by having curl perform escaping, while the proposal would seem to require some sort of in-memory tree representation of the data. I write many single purpose utilties for own use, including one that replaces the "post" shell script in this comment. large scripting language interpreters and/or other large binaries, is in short supply and 2. Printf "%s\r\n\r\n%s\r\n" "$y: close" "$x" fi īased on personal experience as an end user, I find that using separate utilities is faster and more flexible than curl or similar program mentioned in this thread. "Content-Type: application/x-www-form-urlencoded" \ It is smaller and faster, IME as a non-developer. There is a different way, without curl or other curl-like programs, without Python, Go, or the like.
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