How to send form values to a backend Flask? [duplicate] - ajax

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Closed 5 years ago.
I have heard that we can do this with ajax for it, but how do we achieve it? Please give a brief explanation of it.

Answer 1

Example Form:
<form role="form" action="http://127.0.0.1:8080/user/login" method="post" name="loginform">
<fieldset>
<legend>Login</legend>
<div class="form-group">
<label for="email">Email</label>
<input type="text" name="email" placeholder="Your Email" required class="form-control" />
</div>
<div class="form-group">
<label for="name">Password</label>
<input type="password" name="password" placeholder="Your Password" required class="form-control" />
</div>
<div class="form-group">
<input type="submit" name="login" value="Login" class="btn btn-primary" />
</div>
</fieldset>
</form><form role="form" action="http://127.0.0.1:8080/user/login" method="post" name="loginform">
<fieldset>
<legend>Login</legend>
<div class="form-group">
<label for="email">Email</label>
<input type="text" name="email" placeholder="Your Email" required class="form-control" />
</div>
<div class="form-group">
<label for="name">Password</label>
<input type="password" name="password" placeholder="Your Password" required class="form-control" />
</div>
<div class="form-group">
<input type="submit" name="login" value="Login" class="btn btn-primary" />
</div>
</fieldset>
</form>
If you want to use Javascript ajax call from front-end to back-end:
$.ajax({
method: 'post',
url: '/login',
success: function(res) {
return 'success';
}
})
tangle-make:
#SHELL := /bin/bash
BUILD_DIR=build
VER_BRANCH=build-release
VER_FILE=VERSION
ORG_MODE_DIR=~/emacs/lisp
LITERATE_TOOLS="https://github.com/vlead/literate-tools.git"
LITERATE_DIR=literate-tools
ELISP_DIR=elisp
ORG_DIR=org-templates
STYLE_DIR=style
CODE_DIR=build/code
DOC_DIR=build/docs
SRC_DIR=src
PWD=$(shell pwd)
STATUS=0
all: check-org build
check-org:
ifeq ($(wildcard ${ORG_MODE_DIR}/org-8.2.10/*),)
mkdir -p ${ORG_MODE_DIR}
wget http://orgmode.org/org-8.2.10.tar.gz
tar zxvf org-8.2.10.tar.gz
rm -rf org-8.2.10.tar.gz
mv org-8.2.10 ${ORG_MODE_DIR}
else
#echo "org-mode org-8.2.10 already present"
endif
build: init write-version
emacs --script elisp/publish.el
init: mk-symlinks
rm -rf ${BUILD_DIR}
mkdir -p ${BUILD_DIR} ${CODE_DIR}
mk-symlinks: pull-literate-tools
(ln -sf ${LITERATE_DIR}/${ELISP_DIR}; \
ln -sf ../${LITERATE_DIR}/${ORG_DIR} ${SRC_DIR}; \
ln -sf ../${LITERATE_DIR}/${STYLE_DIR} ${SRC_DIR})
pull-literate-tools:
#echo "checking for literate support ..."
echo "pwd=..."
echo ${PWD}
ifeq ($(wildcard ${LITERATE_DIR}),)
#echo "proxy is..."
echo $$http_proxy
(git clone ${LITERATE_TOOLS})
else
#echo "Literate support code already present"
endif
# variable that will exist of git command exists
# solution from: http://stackoverflow.com/questions/5618615/check-if-a-program-exists-from-a-makefile
GIT_EXISTS := $(shell command -v git 2> /dev/null)
# get the latest commit hash and its subject line
# and write that to the VERSION file
write-version:
ifdef GIT_EXISTS
# allow these to fail since the parent folder may not have a git repo.
echo -n "Built from commit: " > ${CODE_DIR}/${VER_FILE}
- echo `git rev-parse HEAD` >> ${CODE_DIR}/${VER_FILE}
- echo `git log --pretty=format:'%s' -n 1` >> ${CODE_DIR}/${VER_FILE}
endif
clean-literate:
rm -rf ${ELISP_DIR}
rm -rf src/${ORG_DIR}
rm -rf src/${STYLE_DIR}
rm -rf ${LITERATE_DIR}
clean: clean-literate
rm -rf ${BUILD_DIR}