httpie-cli/extras/httpie-completion.fish

function __fish_httpie_styles
    echo "
abap
algol
algol_nu
arduino
auto
autumn
borland
bw
colorful
default
emacs
friendly
fruity
gruvbox-dark
gruvbox-light
igor
inkpot
lovelace
manni
material
monokai
murphy
native
paraiso-dark
paraiso-light
pastie
perldoc
rainbow_dash
rrt
sas
solarized
solarized-dark
solarized-light
stata
stata-dark
stata-light
tango
trac
vim
vs
xcode
zenburn"
end

function __fish_httpie_auth_types
    echo -e "basic\tBasic HTTP auth"
    echo -e "digest\tDigest HTTP auth"
end

function __fish_http_verify_options
    echo -e "yes\tEnable cert verification"
    echo -e "no\tDisable cert verification"
end

# Predefined Content Types

complete -c http -s j -l json         -d 'Data items are serialized as a JSON object'
complete -c http -s f -l form         -d 'Data items are serialized as form fields'
complete -c http      -l multipart    -d 'Always sends a multipart/form-data request'
complete -c http      -l boundary  -x -d 'Custom boundary string for multipart/form-data requests'
complete -c http      -l raw       -x -d 'Pass raw request data without extra processing'


# Content Processing Options

complete -c http -s x -l compress -d 'Content compressed with Deflate algorithm'


# Output Processing

complete -c http      -l pretty         -xa "all colors format none" -d 'Controls output processing'
complete -c http -s s -l style          -xa "(__fish_httpie_styles)" -d 'Output coloring style'
complete -c http      -l unsorted                                    -d 'Disables all sorting while formatting output'
complete -c http      -l sorted                                      -d 'Re-enables all sorting options while formatting output'
complete -c http      -l format-options -x                           -d 'Controls output formatting'


# Output Options

complete -c http -s p -l print         -x -d 'String specifying what the output should contain'
complete -c http -s h -l headers          -d 'Print only the response headers'
complete -c http -s b -l body             -d 'Print only the response body'
complete -c http -s v -l verbose          -d 'Print the whole request as well as the response'
complete -c http      -l all              -d 'Show any intermediary requests/responses'
complete -c http -s P -l history-print -x -d 'The same as --print but applies only to intermediary requests/responses'
complete -c http -s S -l stream           -d 'Always stream the response body by line'
complete -c http -s o -l output        -F -d 'Save output to FILE'
complete -c http -s d -l download         -d 'Download a file'
complete -c http -s c -l continue         -d 'Resume an interrupted download'
complete -c http -s q -l quiet            -d 'Do not print to stdout or stderr'


# Sessions

complete -c http -l session           -F -d 'Create, or reuse and update a session'
complete -c http -l session-read-only -F -d 'Create or read a session without updating it'


# Authentication

complete -c http -s a -l auth         -x                               -d 'Username and password for authentication'
complete -c http -s A -l auth-type    -xa "(__fish_httpie_auth_types)" -d 'The authentication mechanism to be used'
complete -c http      -l ignore-netrc                                  -d 'Ignore credentials from .netrc'


# Network

complete -c http      -l offline          -d 'Build the request and print it but don\'t actually send it'
complete -c http      -l proxy         -x -d 'String mapping protocol to the URL of the proxy'
complete -c http -s F -l follow           -d 'Follow 30x Location redirects'
complete -c http      -l max-redirects -x -d 'Set maximum number of redirects'
complete -c http      -l max-headers   -x -d 'Maximum number of response headers to be read before giving up'
complete -c http      -l timeout       -x -d 'Connection timeout in seconds'
complete -c http      -l check-status     -d 'Error with non-200 HTTP status code'
complete -c http      -l path-as-is       -d 'Bypass dot segment URL squashing'
complete -c http      -l chunked          -d ''


# SSL

complete -c http -l verify   -xa "(__fish_http_verify_options)" -d 'Enable/disable cert verification'
complete -c http -l ssl      -x                                 -d 'Desired protocol version to use'
complete -c http -l ciphers  -x                                 -d 'String in the OpenSSL cipher list format'
complete -c http -l cert     -F                                 -d 'Client side SSL certificate'
complete -c http -l cert-key -F                                 -d 'Private key to use with SSL'


# Troubleshooting

complete -c http -s I -l ignore-stdin      -d 'Do not attempt to read stdin'
complete -c http      -l help              -d 'Show help'
complete -c http      -l version           -d 'Show version'
complete -c http      -l traceback         -d 'Prints exception traceback should one occur'
complete -c http      -l default-scheme -x -d 'The default scheme to use'
complete -c http      -l debug             -d 'Show debugging output'